Home / 12,212,632.80-18,318,949.20-6,240,664.80

Finding the Fourth Proportional to 12,212,632.80, 18,318,949.20 and 6,240,664.80

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Solution

The fourth proportional to 12,212,632.80, 18,318,949.20 and 6,240,664.80 is: 9,360,997.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,212,632.80 : 18,318,949.20 = 6,240,664.80 : x
  2. Step 2: Convert to fraction form
    12,212,632.80/18,318,949.20 = 6,240,664.80/x
  3. Step 3: Cross multiply
    12,212,632.80x = 18,318,949.20 × 6,240,664.80
  4. Step 4: Simplify right side
    12,212,632.80x = 114,322,421,445,428.16
  5. Step 5: Solve for x
    x = 114,322,421,445,428.16/12,212,632.80
  6. Step 6: Final answer
    x = 9,360,997.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.